<html>
    <head>
        <title>后台管理系统-菜单</title>
        <meta charset="utf-8">
    </head>
    <body>
        <center><a href="welcome.php" target="main">首页</a></center>  
        <center><a href="user.php" target="main">用户列表</a></center>
        <center><a href="password.php" target="main">修改密码</a></center>  
    </body>
</html>